asa, ’sa

Definitions (by source)

rel. of copula with poss. pron. agreeing in number and gender with the antecedent: dáil duas ’s a barr nach bearair, distribution of presents that is not excelled (lit. whose supremacy is not taken), 431 [For an interesting collection of exx. amongst which the apparent poss. pron. geminates the following initial irrespective of number or gender of the antecedent, see Éigse III, 143-4]